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A solid with a hierarchical tetramodal micro-meso-macro pore size distribution

Author

Listed:
  • Yu Ren

    (EaStCHEM, School of Chemistry, University of St Andrews)

  • Zhen Ma

    (Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Fudan University
    Oak Ridge National Laboratory)

  • Russell E. Morris

    (EaStCHEM, School of Chemistry, University of St Andrews)

  • Zheng Liu

    (EaStCHEM, School of Chemistry, University of St Andrews)

  • Feng Jiao

    (University of Delaware)

  • Sheng Dai

    (Oak Ridge National Laboratory)

  • Peter G. Bruce

    (EaStCHEM, School of Chemistry, University of St Andrews)

Abstract

Porous solids have an important role in addressing some of the major energy-related problems facing society. Here we describe a porous solid, α-MnO2, with a hierarchical tetramodal pore size distribution spanning the micro-, meso- and macro pore range, centred at 0.48, 4.0, 18 and 70 nm. The hierarchical tetramodal structure is generated by the presence of potassium ions in the precursor solution within the channels of the porous silica template; the size of the potassium ion templates the microporosity of α-MnO2, whereas their reactivity with silica leads to larger mesopores and macroporosity, without destroying the mesostructure of the template. The hierarchical tetramodal pore size distribution influences the properties of α-MnO2 as a cathode in lithium batteries and as a catalyst, changing the behaviour, compared with its counterparts with only micropores or bimodal micro/mesopores. The approach has been extended to the preparation of LiMn2O4 with a hierarchical pore structure.

Suggested Citation

  • Yu Ren & Zhen Ma & Russell E. Morris & Zheng Liu & Feng Jiao & Sheng Dai & Peter G. Bruce, 2013. "A solid with a hierarchical tetramodal micro-meso-macro pore size distribution," Nature Communications, Nature, vol. 4(1), pages 1-7, October.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3015
    DOI: 10.1038/ncomms3015
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    Cited by:

    1. Tan, Songwen & Chen, Xuncai & Zhai, Shengli & Ebrahimi, Amirali & Langrish, Timothy & Chen, Yuan, 2018. "Spray drying assisted synthesis of porous carbons from whey powders for capacitive energy storage," Energy, Elsevier, vol. 147(C), pages 308-316.
    2. Mehrab Nodehi & Vahid Mohammad Taghvaee, 2022. "Applying Circular Economy to Construction Industry through Use of Waste Materials: A Review of Supplementary Cementitious Materials, Plastics, and Ceramics," Circular Economy and Sustainability, Springer, vol. 2(3), pages 987-1020, September.

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